JIS Standard M2 Steel Gas Release One-Step Core Pins Flat Sides SVC

This one-step gas release core pin variant is used in precision injection molds where consistent venting and stable core alignment are critical. The extended SVC flat-sided section helps maintain a repeatable core seating orientation while supporting exhaust flow through the built-in one-step gas release feature.

• Automotive connector and sensor molds: Use these pins to improve evacuation during overmolding, helping reduce trapped-gas defects while keeping the core position stable under high cycle repetition. The M2 steel family supports wear resistance for long production runs.
• Electronics and thin-wall housings: In tight cavity layouts, the one-step gas release design supports efficient venting without adding extra vent steps that can complicate tool tuning.
• Medical device housing molds: When dimensional repeatability matters, the flat-sided SVC feature aids consistent assembly fit, supporting reliable ejection and repeatable exhaust performance.

The selection of this variant is especially suited when you need compact, repeatable gas venting plus dependable core positioning in a precision mold stack.

These gas release core pins are offered in SKH51 and SKD61 material options. SKH51 corresponds to AISI M2 (high-speed steel class) and is selected for strong wear resistance under sliding/abrasion during repeated core use. SKD61 is an H13-equivalent hot-work tool steel option, typically chosen for balanced toughness and thermal fatigue performance in production.

• SKH51 (AISI M2 equivalent): Higher abrasion resistance; best when venting features experience frequent rubbing/abrasive contact.
• SKD61 (H13 equivalent): Better toughness balance; suitable when the tool sees frequent thermal cycling.

Heat treatment is specified as quenched & tempered (pre-set hardened steel performance per the product description), which provides the hardness required for stable operation while maintaining acceptable toughness. Exact HRC values are not provided in the provided data, but the hardened-and-tempered condition indicates a trade-off between wear resistance and core/pin toughness appropriate for core pins.

To select the correct gas release one-step core pin dimensions, start by matching the shaft diameter D/P to the core pin bore in your mold. Available D/P range is 1 to 13 mm, so choose the nearest standard diameter used in your tool drawing.

• Length L and tolerance: The L dimension is available from 6.5 to 100 mm (or up to 6.5 to 120 mm depending on the configuration). The L dimension tolerance is given as +0.01/0, 0/-0.1, so confirm whether your drawing requires a strict maximum or allows negative deviation.
• Shaft fit considerations: The product description references a shaft diameter tolerance of 0/-0.005. This means the pin can be up to nominal with limited undersize; ensure your bore and locking method account for the negative deviation.
• Gas release geometry: Match DC (0.92 to 12.92 mm), DCX when DC = D, and the SV facet cutting length (2 to 50 mm or 2 to 60 mm) to the required vent location and exposed area depth.

Finally, select the step and tip styles (first step shape 1A/1B/1C/1D; tip shape options B/C/G/R/T, or no processing) to align with your core seating and ejection clearance design.